As you’d probably expect, this little project uses a bunch of accelerometers to track motion and then stores all that on an SD card. As with a lot of Heck’s projects, this one’s a little on the advanced side and requires lots of soldering, desoldering, and a fair share of experimentation. The end result is a data file you can check out at the end of your flight to see exactly how much your bag was tossed around. Since you can’t turn back time, there’s not much you can do to fix any issues, but at least you’ll know what happened with your bag while you were away. If nothing else, it shows off how to log data from accelerometers, which should be useful in a variety of other projects.